package org.example.erpdemo.demos.interceptor;

import org.example.erpdemo.demos.constant.Constants;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

@Component
public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {HttpSession session = request.getSession(false);
        if (session != null && session.getAttribute(Constants.SESSION_USER_KEY) != null) {
            return true;
        }
        response.setStatus(401);
        return false;
    }
}
